Home / 115,029,150.12-172,629,419.13-84,402,868.68

Finding the Fourth Proportional to 115,029,150.12, 172,629,419.13 and 84,402,868.68

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Solution

The fourth proportional to 115,029,150.12, 172,629,419.13 and 84,402,868.68 is: 126,667,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,029,150.12 : 172,629,419.13 = 84,402,868.68 : x
  2. Step 2: Convert to fraction form
    115,029,150.12/172,629,419.13 = 84,402,868.68/x
  3. Step 3: Cross multiply
    115,029,150.12x = 172,629,419.13 × 84,402,868.68
  4. Step 4: Simplify right side
    115,029,150.12x = 14,570,418,193,134,070
  5. Step 5: Solve for x
    x = 14,570,418,193,134,070/115,029,150.12
  6. Step 6: Final answer
    x = 126,667,181.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.